Apparatus for drawing hollow glass articles.



M. J. HEALY. APPARATUS FOR DRAWING HOLLOW GLASS ARTICLES.

I APPLICATION IfILBD JAN. 4, 1913. 1,1 1 5,934; Patented Nov. 3, 1914.

W INVENTOR I 14/101718) W1 NESSES A UNETED @TATES MACK J'. I-IEALY, OF BRADFORD, PENNSYLVANIA, ASSSIGNQR,

TO CONSOLIDATED MACHINE COMPANY, OF BRADFORD,

narron or DELAWARE,

Linnea.

Application filed January Specification of Letters Patent.

rarnnr enrich.

BY MESNE ASSIGNMENTS. PENNSYLVANIA, ACORPG- Patented Nov. a rare.

4, 1913. Serial No. 740,257.

To all whom it may concern Be it known that-I, MACK Bradford, in the county of McKean and State of Pennsylvanimliave invented certain new and useful Improvements in Apparatus for Drawing Hollow Glass Articles; and I do hereby declare the following to be a full, clear, and exact description otthe 1nvention, such-as will enable others sk lled n the art to which it appertains to make and use the same.

My invention relates to animprovement in apparatus for drawing hollow glass art1- cles such as cylinders from which window J. 'HEALY, of

glass is made, andis designed particularly as an improvement on the construction dis-' closed in Patent No. 1,008,465, granted to me November 14th, 1911. In the patent the top stone having the drawing opening therein, and the side and back shades, are made of refractory clay, and are supported .on the breast wall of the tank and on piers located within the 'tank. I

The object of this invention is todispense altogether with the piers, and loosely support the shades and top plate or frame on the breast wall and by thereof or arch of the tank, whereby the top plate or frame, and shadesmay be turned out of the tank for repairs and other purposes.

A further object is to provide improved means for regulating the temperature at the lower end of the cylinder being drawn.

With these ends in view my invention consists in the parts and combination of parts as will be more fully described and pointed out in the claims.

In the accompanying drawings, Figure l is a view in vertical section through a porion of a glass melting tanl. showing my improvements applied thereto; Fig. 2- is a top plan view of the top plate and shades, and Figs. 3 and 4: are views of modifications.

1 represents the tank, 2 the breast wall of the latter and 3 the arch or cap provided with one or with a plurality of openings 4.. My improvements are located within these openings at, and consist of a top frame or plate 5, side and back shades 6 and a ring shield 7, all of which parts are made of hollow metal frames rlgidly secured to gether, and suitably braced if necessary to prevent undue expansion or distortion of the sides thereof by the intense heat to which they are subjected. 'lhe top frame or plate is curved at its rear end to form the front half of the drawing opening, while the sides and back shades form the rear half of said opening. The ring shield 7 which as above explained is rigid with the shade and also with the top plate, depends below these parts and is concentric with the drawing opening therein so as to engage, or is provided with fingers 7 which engage, the floating ring 8 for holding. the latter in proper position under the drawing opening. and shades are so constructed as to approximately fill the opening 4 in the arch or cap of the tank, thereby preventing to a large extent the less of heat through the opening and preventing undue chilling of the glass immediately under said opening. The sides and back shades 6 project up into the opening 4 in the arch or cap 2, the size of the opening being such as to permit the shades and top plate or frame-to be lifted or tilted out of the opening whenever it may be necessary or desirable to do so. The front plate or frame is provided at its front edge with a hingemember 8 engaging a hinge member 8* vertically movable on the screw rod 9 and held in place by nuts 9 above and below the hinge member 8 whereby the top frame or plate andthe side shades may be turned over and out of the tank.

The shades are supported at the sides by cables 11 which latter .passover sheaves, and carry counterweights, or if desired-may be secured to winding drums.

If desired the side shades may be made up of separate and independent vertical compartments as shown in Fig. 1, each having its water inlet 12 and outlet 13 that any one or more compartments may be maintained at a lower temperature than the other. This may be done by forcing colder water rapidly through those in which the lower temperatures are desired.

With the construction disclosed the ring shield 7 rests approximately horizontal when the shades are in their normal position, with the lower edge of the ring shield 7 slightly above the top of the floating ring, which as previously explained is held in its central position under the drawing opening by the fingers 7*. By winding up or pulling on the free ends of cable 11 the whole structure. within the opening in the arch The top frame departing from the spirit and scope of my invention, hence I would have it understood that I do not wish to confine myself to the exact construction and arrangement of parts shown and described, but

Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is 2- 1. In apparatus for drawing glass, the combination of a tank having an opening through its atop, a top plate within said opening and in a plane below the top of the tank, and provided with adrawing opening, shades projecting upwardly at the side edges and rear of the top plate for substantially closing the opening between the top of the tank and saidtop plate, and aring shield depending from the top plate around the drawing opening in the latter, the said top plate, shades and ring shield being rigidly secured together and removably supported in the tank by external means.

2. In apparatus for drawing. glass, the combination of a tank having an opening through its top, a top plate within said opening in a plane below the top. of the tank, and provided with a drawing opening, shades projecting upwardly at the side edges and rear of the top plate for substantially closing the opening in the tank between the top of the latter and said top plate, a ring shield depending from the top Copies of this patent may be obtained for five cents each, by address-5E5;

plate around the drawing opening in the latter, the said plate, shades and shield being hollow andrigidly secured together and removably supported in said opening in the tank, and water supply and waste pipes for water cooling the plate, shades and shield.

3. In apparatus for drawing glass, the combination of a tank having an opening through its top, a top plate hinged at its outer end .and located within said opening in a plane below the top of the tank and provided with a drawing opening, shades projecting upwardly at the side edges and rear edge of the top plate and substantially closing the opening between the top of the tank and said top plate, the said top plate and shades beingintegral, and means for supporting the top plate in a'horizontal position and permitting it and its attached shades to be turned forwardly on its hinged en lout of the tank. y

l. In apparatus for drawing glass the combination with a tank having an opening through its top, a top plate hinged at its outer end and located within said open- -ing in a plane below the top of the tank and provided with a drawing. opening, shades rigid with and projecting upwardly at the side edges and rear of the top plate and substantially closing the opening between the top of the tank and said top plate, a ring'shieldring depending from the top plate around the drawing opening in the latter, the said plate, shades and ring shield being integral, and'external means supporting the top plate within the tank.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

MACK J. HEALY.

Witnesses: I I

WILLIAM C. PURPLE, ADA M. MILLER.

Commissioner of Patents,

Washington, I). C. 

